account for dependencies when showing memory usage

Author: matklad

crates/ra_cli/src/analysis_stats.rs

@@ -115,9 +115,13 @@ pub fn run(verbose: bool, memory_usage: bool, path: &Path, only: Option<&str>) -
     println!("Analysis: {:?}, {}", analysis_time.elapsed(), ra_prof::memory_usage());
 
     if memory_usage {
+        drop(db);
         for (name, bytes) in host.per_query_memory_usage() {
             println!("{:>8} {}", bytes, name)
         }
+        let before = ra_prof::memory_usage();
+        drop(host);
+        println!("leftover: {}", before.allocated - ra_prof::memory_usage().allocated)
     }
 
     Ok(())

crates/ra_ide_api/src/change.rs

@@ -252,6 +252,13 @@ impl RootDatabase {
                 let q: $q = Default::default();
                 let name = format!("{:?}", q);
                 acc.push((name, before - after));
+
+                let before = memory_usage().allocated;
+                self.query($q).sweep(sweep.discard_everything());
+                let after = memory_usage().allocated;
+                let q: $q = Default::default();
+                let name = format!("{:?} (deps)", q);
+                acc.push((name, before - after));
             )*}
         }
         sweep_each_query![